Selectable Treatments and Stages/Elements

[dankim444]

This PR includes several changes to improve the handling of treatments and stages in Timeline, as well as new Cypress tests to reflect these changes. The most important additions are new state variables, updates to the Cypress tests, and the introduction of a new Dropdown component for selecting different sections of a treatment object (for now, just treatments and stages).

Closes #97, #98, #102, #106, #107.

Support for dynamic selection of different treatments:

• Added selectedTreatmentIndex and setSelectedTreatmentIndex to the app's global context to handle selection of treatments dynamically.
• Updated logic throughout codebase to use selectedTreatmentIndex instead of hardcoded indices.

Cypress test updates:

• Added the filterTreatment.cy.ts file to include tests for
  • dynamically populating stage and treatment options
  • testing various cases of using the dropdown component
  • ensuring consistent conditional rendering in Timeline and consistent global and localStorage variables
  • verifying the persistence of selected stages and treatments after page reloads.
  • testing edge cases, including when either the treatments array or stages array is empty.
• Refactored the reorder.cy.ts file to use aliases for drag and drop elements and stages instead of chain of commands to (hopefully) make the tests more robust and resist failures.

New Dropdown Component:

• Introduced a new Dropdown component in Dropdown.tsx to standardize the dropdown UI elements used for selecting treatments and stages (and in the future, introSequences and possibly templates).

Refactored Timeline:

• Mostly reworked some logic and refactored code for better maintainability:
  • Better state management by adding default values and parsing for context/localStorage values to prevent errors during initialization
  • Synchronized index values in localStorage with values in context for consistency with app and cypress tests that use those values for validation checks.

Submodule update:

• Updated the submodule commit reference for deliberation-empirica.

Notes

I added some logic for handling introSequences in Timeline that isn't tested. This is mostly there for future work in a separate branch or issue. This PR only focuses on treatments and stages/elements.

[cypress]

deliberation-researcher-portal    Run #181

Run Properties:   Passed #181  •  34e986f9a6: Merge pull request #119 from Watts-Lab/dan/selector

Project	deliberation-researcher-portal
Branch Review	evan-sync
Run status	Passed #181
Run duration	04m 52s
Commit	34e986f9a6: Merge pull request #119 from Watts-Lab/dan/selector
Committer	Dan Kim
View all properties for this run ↗︎

---

Test results
Failures	0
Flaky	0
Pending	0
Skipped	0
Passing	22
View all changes introduced in this branch ↗︎